Bodycote is the heaviest faller after the engineering firm said half-year revenue fell by a fifth and warned of a marginal operating loss before exceptional items.Housebuilder Redrow, which yesterday said trading results are expected to be around the lower end of analysts' expectations, is also lower.BBA is flying high though after the aircraft services group said it has been outperforming the market during the first six months of the year and expects to continue doing so in the second half despite volatile markets.FTSE 250 - RisersEmerald Energy (EEN) 550.00p +8.06%SThree (STHR) 180.75p +5.86%Restaurant Group (RTN) 151.00p +4.68%ARM Holdings (ARM) 122.75p +4.47%PayPoint (PAY) 468.00p +4.29%Intermediate Capital Group (ICP) 469.50p +3.53%Kesa Electricals (KESA) 107.00p +3.38%Talvivaara Mining Company (TALV) 338.25p +3.36%BBA Aviation (BBA) 118.25p +3.28%Punch Taverns (PUB) 87.75p +3.24%FTSE 250 - FallersBodycote (BOY) 108.50p -13.37%Redrow (RDW) 188.25p -6.34%Catlin Group (CGL) 295.00p -4.68%Michael Page International (MPI) 236.75p -4.34%Premier Foods (PFD) 35.00p -4.11%Aquarius Platinum Ltd. (AQP) 183.00p -3.81%Chloride Group (CHLD) 137.75p -3.67%John Wood Group (WG.) 235.50p -3.58%PV Crystalox Solar (PVCS) 77.25p -3.44%Amlin (AML) 300.75p -3.30%